7.2 Exponential Patterns

In the solution to Example 4, note that the average of the ratios is about 0.7.

So, it appears that the tiger population decreases to almost 70% of what it was every five years.

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Checkpoint Solution

The estimated percents of remaining tiger habitat from 1985 through 2010 are:

Although the rate of decrease varies, it appears that the percent of remaining tiger habitat decreases to about 80% of what it was every 5 years. This means that the rate of decrease is about 20% every 5 years.

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